how to change language to Arabic language ?

[Exsonqu_Qu]

Hi,
I think if use wamp, it'll not display properly. You can choose to comment out gettext extension in wamp. So webERP will use it's own gettext translation feature.
If you use it in unix, you can get some material here:
http://www.weberp.org/wiki/FrequentlyAskedQuestions
Hope it's helpful.
Best regards!
Exson